<template>
  <el-card shadow="always" :body-style="{ padding: '20px' }">
    <template #header>
      <el-button
        type="primary"
        size="default"
        :icon="Plus"
        @click="addTrademark"
        >添加</el-button
      >
    </template>
    <!-- card body -->
    <el-table :style="{ marginBottom: '30px' }" :data="tabelData" border stripe>
      <el-table-column label="序号" align="center" type="index" width="80" />
      <el-table-column prop="tmName" label="品牌名称"></el-table-column>
      <el-table-column prop="logoUrl" label="品牌LOGO">
        <template #default="{ row }">
          <!-- <img height="60" :src="row.logoUrl" alt="" /> -->
          <el-image
            :src="row.logoUrl"
            :lazy="true"
            style="height: 60px"
          ></el-image>
        </template>
      </el-table-column>
      <el-table-column label="操作">
        <template #default="{ row }">
          <el-button
            type="warning"
            size="small"
            :icon="Edit"
            @click="updateTrademark(row)"
            >修改</el-button
          >
          <!-- 给它传一个row.id -->
          <el-button type="danger" 
          size="small"
           :icon="Delete" 
           @click="deleteTrademark(row.id)"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>
<!-- 页码 -->
    <el-pagination
      v-model:page-size="limit"
      v-model:current-page="page"
      :page-sizes="[3, 5, 7, 9]"
      :pager-count="5"
      layout="prev, pager, next,sizes"
      :total="total"
    />
  </el-card>

  <!-- dialogFormVisible:代表动画框是否弹出 -->
  <el-dialog
    v-model="dialogFormVisible"
    :title="newTrademark.id ? '修改品牌' : '添加品牌'"
  >
  <!-- :model="newTrademark"是要拿到底下的数据 -->
    <el-form 
    label-width="100px" 
    :model="newTrademark" 
    :rules="trademarkRule"
    ref="ruleFormRef"
    >
      <el-form-item label="品牌名称" prop="tmName">
        <el-input autocomplete="off" v-model="newTrademark.tmName" />
      </el-form-item>
      <el-form-item label="品牌LOGO" prop="logoUrl">
        <!-- 我们只需要 -->
        <el-upload
          class="avatar-uploader"
          :action="`${baseUrl}/admin/product/upload`"
          :show-file-list="false"
          :on-success="handleAvatarSuccess"
          :before-upload="beforeAvatarUpload"
        >
          <img
            v-if="newTrademark.logoUrl"
            :src="newTrademark.logoUrl"
            class="avatar"
          />
          <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
        </el-upload>
      </el-form-item>
    </el-form>
    <template #footer>
      <span class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button type="primary" @click="updateOrAddTrademark">确认</el-button>
      </span>
    </template>
  </el-dialog>
</template>


<script lang="ts">
import { defineComponent } from "vue";
export default defineComponent({
  name: "Trademark",
});
</script>
<script setup lang="ts">
  import { ref, toRefs, onMounted, watch , reactive} from "vue";
  import { Plus, Edit, Delete } from "@element-plus/icons-vue";
  import {
    requestTrademarkList,
    requestUpdateTrademark,
    requestAddTrademark,
    requestDeleteTrademark
  } from "@/api/trademark";
  import type {
    reqTrademarkReturnRecordsType,
    reqAddTradeParamsType,
    reqTrademarkReturnItemType,
  } from "@/api/trademark";
  import { ElMessage,ElMessageBox,} from "element-plus";
  import type { UploadProps ,FormRules , FormInstance } from "element-plus";
  

//  1.table的逻辑
// table数据
const tabelData = ref<reqTrademarkReturnRecordsType>([]);

// 2.页码逻辑
interface pageDateType {
  page: number;
  limit: number;
  total: number;
}

const pageData = ref<pageDateType>({
  page: 1,
  limit: 3,
  total: 100,
});

// 解构出页码的属性
const { page, limit, total } = toRefs(pageData.value);

//监听页码的改变 然后重新发送请求
watch([page, limit], () => {
  getTrademarkList();
});


// 3.获取品牌列表
// 封装获取品牌列表的功能函数
const getTrademarkList = async () => {
  const result = await requestTrademarkList({
    page: page.value,
    limit: limit.value,
  });

  //把请求回来的值设置给响应数据
  tabelData.value = result.records;
  total.value = result.total;
};
// 初始化
onMounted(() => {
  //调用获取品牌列表的功能函数
  getTrademarkList();
});

// 4.弹窗逻辑
// 控制弹窗显示隐藏的数据
const dialogFormVisible = ref(false);
const baseUrl = import.meta.env.VITE_API_URL;
// 这个就是回填数据
const newTrademark = ref<reqTrademarkReturnItemType>({
    logoUrl: "",
    tmName: "",
    // 加一个0,是做判断的
    id: 0,
});
// 上传逻辑  上传成功给后台返回一个地址，地址给到数据，然后数据双向绑定
const handleAvatarSuccess:UploadProps["onSuccess"] = (
  response,
  uploadFile
) =>{
  // imageUrl.value = URL.createObjectURL(uploadFile.raw!);
  // console.log(imageUrl.value);
  newTrademark.value.logoUrl = response.data;
  console.log(response);  
};

const beforeAvatarUpload: UploadProps["beforeUpload"] = (rawFile) =>{
//  判断上传图片的类型，如果不想限制直接删除就可以了
  if(rawFile.type ! =="image/jep") {
    ElMessage.error("Avatar picture must be JPG format!");
    return false;
  } else if (rawFile.size / 1024 / 1024 > 2) {
    ElMessage.error("Avatar picture size can not exceed 2MB!");
    return false;
  }
   return true;
};

// 5.添加逻辑
const addTrademark =() => {
    //先清空上一次可能残留的校验信息
    ruleFormRef.value?.clearValidate();
  //控制add弹窗的显示隐藏
  dialogFormVisible.value =true;
  newTrademark.value = {
    logoUrl:"",
    tmName:"",
    id:0,
  };
};

// 6.修改逻辑
const updateTrademark = async (row: reqTrademarkReturnItemType) =>{
   //先清空上一次可能残留的校验信息
   ruleFormRef.value?.clearValidate();
  dialogFormVisible.value =true;
  //获取当前的数据然后进行回填数据
  // 拿到当前的数据浅拷贝赋值给表单的数据newTrademark(为了数据不会互相影响)
  newTrademark.value ={ ...row};
};
//7.新增和修改提交
//获取form表单的实例
const ruleFormRef = ref<FormInstance>();

const updateOrAddTrademark = async () => {
  //先进行全局校验
  try {
    await ruleFormRef.value?.validate();
    dialogFormVisible.value = false;

    try {
      if (newTrademark.value.id) {
        //修改提交
        await requestUpdateTrademark(newTrademark.value);
        ElMessage.success("修改成功");
      } else {
        //新增提交
        await requestAddTrademark(newTrademark.value);
        ElMessage.success("新增成功");
        page.value = 1;
      }
      getTrademarkList();
    } catch (e) {
     ElMessage(newTrademark.value.id ? "修改错误" : "新增错误");
    }
  } catch (e) {
    // ElMessage("请填写合法的值");
  }
};

//8. 删除逻辑
  const deleteTrademark = async (id:number) => {
    ElMessageBox.confirm("你真的要删除吗?", "警告!!", {
    confirmButtonText: "删除",
    cancelButtonText: "取消",
    type: "warning",
  })
  .then(async () =>{
    //删除
    try {
      await requestDeleteTrademark(id);
      // 重新发送请求
      getTrademarkList();
    } catch(e){
      ElMessage.error("删除失败了");
    }
  })
  .catch(()=>{
    // 信息提示
    ElMessage.info("点错了吧？");
  });
  };
//9.表单校验规则
// 自定义表单规则函数
const checkTmNameLength = (rule:any,value:string,callback:any)=>{
  /* 
  value是当前需要被校验的值
  callback是回调函数，如果有参数则代表错误信息，如果没有参数则代表放行
  */
 if(value.length < 2||value.length>5){
  callback("长度必须是2-5位");
 }else{
  callback();
 }
};

const trademarkRule = reactive<FormRules>({
  tmName: [
    { required: true, message: "必须填写品牌名称", trigger: "blur" },
   
    {validator:checkTmNameLength, message: "长度必须是2-5", trigger: "blur" },
  ],
  logoUrl: [{ required: true, message: "必须上传图片", trigger: "change" }],
});

/*
//最完成的解构ref属性的带类型的写法
  const {
    page,
    limit,
    total,
  }: { page: Ref<number>; limit: Ref<number>; total: Ref<number> } =
    toRefs<pageDateType>(pageDate.value);

  //对象解构如何限制类型(一般不会限制,因为都能推断出来)
  const o = { a: 1, b: 2 };
  const { a, b }: { a: number; b: number } = o;
  console.log(a, b);
*/
</script>
<style scoped>
.avatar-uploader .avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
</style>
